Cov ntaub ntawv raw rau PCB sinking kub daim hlau feem ntau suav nrog cov substrates, electroplating daws, thiab tshuaj. Ntawm lawv, cov substrate yog cov khoom tseem ceeb ntawm PCB kub phaj, thiab cov khoom thiab qhov zoo ntawm cov substrate ncaj qha cuam tshuam qhov zoo ntawm PCB kub phaj. Yog hais tias cov khoom ntawm cov substrate yog impure los yog tsis zoo, nws yog ib qho yooj yim ua rau carbon ntsiab nyob rau hauv lub PCB kub phaj kom tshaj tus qauv.
1, Cov txheej txheem ntau lawm
Cov txheej txheem ntau lawm ntawm PCB sinking daim hlau suav nrog ntau yam txheej txheem xws li tshuaj kub plating, electroplated kub plating, thiab npib tsib xee plating. Hauv cov kev sib txuas no, yog tias kev ua haujlwm tsis raug lossis cov txheej txheem tsis zoo tag nrho, nws tuaj yeem ua rau cov ntsiab lus carbon ntau dhau hauv PCB kub plating daim hlau. Piv txwv li, nyob rau hauv cov tshuaj kub plating txheej txheem, yog hais tias qhov kub thiab txias, pH tus nqi, concentration thiab lwm yam tsis haum, nws yuav ua rau kom cov pa roj carbon ntau.
3, Khoom siv thiab khoom siv
Kev tsim cov ntawv kub PCB yuav tsum tau siv ntau yam khoom siv thiab cov chaw, xws li electroplating tso tsheb hlau luam, tshuaj kub plating tank, ntxuav lub tank, thiab lwm yam. Yog tias cov khoom ntawm cov khoom siv thiab cov khoom siv no tsis haum lossis tsis zoo, nws yooj yim rau ua rau cov ntsiab lus carbon hauv PCB cov phiaj kub kom dhau tus qauv. Tsis tas li ntawd, kev saib xyuas thiab tu cov cuab yeej siv thiab cov chaw tseem ceeb heev. Yog tias tsis tau ntxuav thiab tswj kom raws sijhawm, nws tuaj yeem ua rau muaj kev puas tsuaj rau cov khoom siv thiab cov chaw
Qhov nce hauv impurities thiab cov pa phem ua rau cov ntsiab lus carbon ntau dhau hauv PCB cov phiaj kub.
4, Environmental yam
Qhov chaw tsim khoom ntawm PCB sinking kub daim hlau kuj tuaj yeem cuam tshuam rau cov ntsiab lus carbon. Piv txwv li, tej yam xws li huab cua zoo, qhov kub thiab txias, thiab cov av noo nyob rau hauv lub rhiav ntau lawm yuav cuam tshuam rau qhov zoo ntawm PCB sinking daim hlau. Yog hais tias huab cua nyob rau hauv lub rhiav ntau lawm muaj ib tug loj npaum li cas ntawm cov plua plav, cov pa phem, thiab lwm yam, nws yuav ua rau cov pa roj carbon ntau nyob rau hauv daim hlau kub PCB.
Cov laj thawj rau cov ntsiab lus carbon ntau dhau hauv PCB sinking cov phiaj kub feem ntau suav nrog ntau yam xws li cov khoom siv raw, cov txheej txheem tsim khoom, cov khoom siv thiab cov chaw, thiab ib puag ncig. Txhawm rau kom tsis txhob muaj cov pa roj carbon ntau, nws yuav tsum nruj me ntsis tswj qhov zoo thiab qhov tsis zoo ntawm txhua qhov txuas thaum lub sijhawm tsim khoom, thaum ntxiv dag zog rau kev saib xyuas thiab tu cov cuab yeej thiab cov chaw kom huv si thiab huv si ntawm qhov chaw tsim khoom.